NEET Botany Ecosystem Components MCQ Question
If the Gross Primary Productivity (GPP) of an ecosystem is 5000 kcal m – 2 yr –1 and the respiration losses (R) are 2000 kcal m – 2 yr –1, what is the Net Primary Productivity (NPP) of this ecosystem?
3000 kcal m – 2 yr –1
7000 kcal m – 2 yr –1
5000 kcal m – 2 yr –1
2000 kcal m – 2 yr –1
Correct Answer
Detailed Explanation
Net primary productivity (NPP) is calculated as Gross Primary Productivity (GPP) minus respiration losses (R). Here, NPP = 5000 - 2000 = 3000 kcal m – 2 yr –1.
Found an issue with this question?
Related Questions
More from Ecosystem Components
More from
Assertion (A): In an aquatic ecosystem, the grazing food chain (GFC) is the major conduit for energy flow. | Reason (R): The detritus food chain (DFC)...
Match Column-I with Column-II. Column-I Column-II (a) Producers (i) Saprotrophs (b) Primary Consumers (ii) Energy from Sun (c) Decompo...
Match Column-I with Column-II. Column-I Column-II (a) Grass (i) Primary Consumer (b) Goat (ii) Decomposer (c) Man (iii) P...